17072065 has 4 divisors (see below), whose sum is σ = 20486484. Its totient is φ = 13657648.

The previous prime is 17072047. The next prime is 17072087. The reversal of 17072065 is 56027071.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8363664 + 8708401 = 2892^2 + 2951^2 .

It is a cyclic number.

It is not a de Polignac number, because 17072065 - 2¹¹ = 17070017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1707202 + ... + 1707211.

It is an arithmetic number, because the mean of its divisors is an integer number (5121621).

Almost surely, 2^17072065 is an apocalyptic number.

It is an amenable number.

17072065 is a deficient number, since it is larger than the sum of its proper divisors (3414419).

17072065 is an equidigital number, since it uses as much as digits as its factorization.

17072065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3414418.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 17072065 is about 4131.8355485184. The cubic root of 17072065 is about 257.4909790411.

The spelling of 17072065 in words is "seventeen million, seventy-two thousand, sixty-five".